ZW32-40.5 OUTDOOR HIGH VOLTAGE VACUUM CIRCUIT BREAKER (HIGH CURRENT)

Short Description:

ZW32-40.5 outdoor high voltage vacuum circuit breaker adopts a uniquely designed permanent magnet mechanism and a highly reliable intelligent controller.The device is mainly used in medium-voltage overhead line power grids, used for dividing and closing load current, overload current, and short-circuit current, and has 0 to 3 times of automatic reclosing.

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Product Detail

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Product Overview
ZW32-40.5 outdoor high voltage vacuum circuit breaker adopts a uniquely designed permanent magnet mechanism and a highly reliable intelligent controller.

The device is mainly used in medium-voltage overhead line power grids, used for dividing and closing load current, overload current, and short-circuit current, and has 0 to 3 times of automatic reclosing.
Functional characteristics
1.Extremely high reliability
2. Completely maintenance-free during the entire life span
3. It has high mechanical life and electrical life
4. The whole machine is small in size, light in weight and easy to install
5. With standard relay protection and fast automatic reclosing function
Main Technical Parameters

No.	Item	Unit	Data
1	Rated voltage	kV	40.5
2	Rated current	A	1250/1600
3	Rated frequency	Hz	50 或 60
4	Power frequency withstand voltage 1 min( wet)(dry)	kV	80/95
5	Lightning impulse withstand current (peak)	kV	185
6	Rated short-circuit breaking current	kA	31.5
7	Rated short-circuit closing current (peak)	kA	80
8	Rated peak withstand current	kA	80
9	4s short-time withstand current	kA	31.5
10	Rated Operating Cycle		open － 0.1s － close open － 3s － close open-6sclose open-60 srecover
11	Rated short-circuit current breaking time	Times	30
12	Mechanical life	Times	20000
13	Permanent magnet mechanism control voltage	V	DC220
14	Secondary circuit 1 min power frequency withstand voltage	kV	2

Main mechanical parameters of circuit breakers

No.	Item	Unit	Data
1	Contact opening distance	mm	16±1
2	Contact overstroke	mm	4±0.5
3	Opening speed	m/s	1.4-1.8
4	Closing speed	m/s	0.4-0.8
5	Contact closing bounce time	ms	≤5
6	Center distance between phases	mm	460±2
7	Different Periods of Three-phase Closing	ms	≤2
8	Resistance of each phase conductive circuit	μΩ	＜ 120
9	Closing time	ms	25 ～ 45
10	Opening time	ms	20 ～ 45
11	Weight	Kg	295